diff --git a/extras/mk-enc-usb.nix b/extras/mk-enc-usb.nix
index 6d50ca3..dfee09d 100644
--- a/extras/mk-enc-usb.nix
+++ b/extras/mk-enc-usb.nix
@@ -21,12 +21,6 @@ in (writeShellApplication {
     # e.g /dev/sdb
     USB_DEVICE=$1
 
-    if echo "$USB_DEVICE" | grep -q "[0-9]$"; then
-        PARTITION_SEPARATOR="p"
-    else
-        PARTITION_SEPARATOR=""
-    fi
-
     if [ "$EUID" -ne 0 ]; then
       echo "Please run as root"
       exit
@@ -39,10 +33,10 @@ in (writeShellApplication {
     parted "$USB_DEVICE" -- mkpart primary 0% 100%
 
     echo "Creating Encrypted Partition"
-    cryptsetup luksFormat "''${USB_DEVICE}''${PARTITION_SEPARATOR}1"
+    cryptsetup luksFormat "$USB_DEVICE"
 
     echo "Opening Encrypted Partition"
-    cryptsetup open "''${USB_DEVICE}''${PARTITION_SEPARATOR}1" "mk_enc_usb"
+    cryptsetup open "$USB_DEVICE" "mk_enc_usb"
 
     echo "Making Encrypted Filesystem"
     mkfs.ext4 -L "${encryptedUSBData.unencryptedLabel}" /dev/mapper/mk_enc_usb